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Iowa ZIP Codes
Decatur County
Grand River, IA
50108
50108 ZIP Code — Grand River, IA
Decatur County, Iowa
ZIP code 50108 is located in
Grand River ,
Iowa ,
within Decatur County .
It covers approximately 81.53 square miles and serves a population of
438 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 641 .
About ZIP code 50108
The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $48,100. Owner-occupancy is high at 83%, well above the national average.
Median household income is $32,000. Poverty affects 26% of residents, above the national average. 50% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with agriculture and mining as the leading industry. The average commute of 24 minutes is near the national average.
College attainment at 12% is below the national average, consistent with a trades and production-oriented local economy.
Overall, ZIP code 50108 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, high homeownership, and a significant Social Security-dependent population.
50108 ZIP code map
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Cities in ZIP code 50108
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
438
Population density
5 / sq mi
State FIPS
19
County FIPS
053
Geography
Land area
81.53 sq mi
Water area
0.11 sq mi
Latitude
40.8324
Longitude
-93.9578
Timezone
Central (CT)
Area code
641
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
60.4%
50.7%
40.1%
$50k – $100k
24.0%
33.9%
33.4%
$100k – $200k
9.1%
13.2%
21.5%
Over $200k
6.5%
2.1%
5.0%
Demographics & statistics
$32,000
Median household income
11.9%
Bachelor's or higher
Age distribution
Age summary
Group Count % Under 18 75 17.1% 18 and over 363 82.9% 65 and over 124 28.3% Median age 50.1 years
Race & ethnicity
Household income
Income range
This ZIP
County avg
State avg
Under $50k
60.4%
50.7%
40.1%
$50k – $100k
24.0%
33.9%
33.4%
$100k – $200k
9.1%
13.2%
21.5%
Over $200k
6.5%
2.1%
5.0%
Range % of households Under $10k 6.8% $10k–$15k 10.4% $15k–$25k 26.6% $25k–$35k 10.4% $35k–$50k 17.7% $50k–$75k 9.4% $75k–$100k 6.3% $100k–$150k 5.2% $150k–$200k 6.3% $200k+ 1.0% Median income $32,000
Housing
Housing overview
Metric Value Median home value $48,100 Median rent / month $578 Owner occupied 82.8% Renter occupied 17.2% Vacant 23.2% Single-family detached 88.8% Large apartment buildings 0.0% Mobile homes 4.0% Median rooms 5.7 Avg household size (owned) 2.48
Year built
Era % 2020 or later 0.0% 2010–2019 7.6% 2000–2009 4.8% 1990–1999 6.4% 1980–1989 4.8% 1970–1979 8.4% 1960–1969 4.4% 1950–1959 2.0% 1940–1949 1.6% 1939 or earlier 60.0%
Bedrooms
Size % of units No bedroom (studio) 1.2% 1 bedroom 6.8% 2 bedrooms 48.0% 3 bedrooms 36.8% 4 bedrooms 7.2% 5+ bedrooms 0.0%
Vehicles per household
Vehicles % of households No vehicle 1.6% 1 vehicle 18.2% 2 vehicles 25.5% 3 or more 54.7%
Heating fuel
Fuel type % Utility gas 1.0% Electricity 27.6% Propane / LP gas 64.1% Wood 7.3%
Households & families
Household type Count % Married-couple family 90 46.9% Cohabiting couple 53 27.6% Male householder, no spouse 30 15.6% Female householder, no spouse 19 9.9% Households with children under 18 37 19.3% Households with seniors (65+) 87 45.3% Average household size 2.28
Marital status
Status Male Female Never married 24.6% 21.3% Married 46.8% 53.2% Separated 1.0% 0.0% Widowed 0.0% 3.7% Divorced 27.6% 21.8%
Education
Some HS, no diploma
14.6%
Some college, no degree
9.3%
Graduate / professional
1.8%
Metric % HS diploma or higher 85.4% Bachelor's or higher 11.9%
School enrollment (ages 3–17)
Type Count % Nursery / preschool 0 0.0% Kindergarten 0 0.0% Elementary school 39 61.9% High school 12 19.0% College / grad school 12 19.0%
Employment
Industry of employment
Agriculture & mining
23.8%
Arts, food & hospitality
23.8%
Education & healthcare
8.1%
Finance & real estate
6.8%
Public administration
2.6%
Transportation & utilities
1.3%
Professional & management
1.3%
Occupation
Category % Management, business & arts 32.3% Service 21.7% Sales & office 12.3% Natural resources & construction 29.4% Production & transportation 4.3%
Employment type
Type % Private sector 57.4% Government 12.8% Self-employed 28.9% Unpaid family workers 0.9%
Commute
Method % Drive alone 85.1% Carpool 4.3% Public transit 0.0% Walk 2.1% Work from home 8.5% Other means 0.0% Avg commute (minutes) 23.9
Poverty
Married-couple families
16.7%
Female-led households
20.0%
Income support
Source % of households Social Security 50.0% Retirement income 18.8% Supplemental Security 9.4% Cash public assistance 4.2% Food stamps / SNAP 10.4%
Health indicators
Condition % Obesity 40.4% High blood pressure 40.7% High cholesterol 37.2% Diabetes 13.4% Heart disease 9.6% Stroke 4.4% Asthma 9.5% Arthritis 31.6% Kidney disease 4.0% Pulmonary disease 9.4% Cancer 8.9%
Behavior / access % Smoking 18.1% Binge drinking 18.1% No physical activity 27.4% Less than 7 hrs sleep 30.8% Depression 17.6% Fair or poor health 16.4% Poor mental health 13.0% Poor physical health 11.9% No health insurance 9.6% Visited doctor (checkup) 77.5% Visited dentist 62.3% Cholesterol screening 89.5% Teeth loss 15.5%
Veterans & disability
Veterans Count % Civilian veterans 36 9.9%
Disability % Any disability 8.7% Under 18 0.0% 18–64 years 9.2% 65 and over 12.9%
Health insurance coverage
Type % Private insurance 42.7% Public insurance 56.2% No insurance 13.0% Uninsured under 19 6.3%
Language & origin
Language spoken at home (age 5+)
Language Count % English only 409 93.4% Spanish 0 0.0% Other Indo-European 0 0.0% Asian & Pacific Islander 0 0.0% Other languages 0 0.0%
Place of birth & citizenship
Origin Count % Native born (US) 438 100.0% Born in same state 438 100.0% Born in different state 266 60.7% Foreign born 0 0.0% Naturalized citizen 0 0.0% Not a US citizen 0 0.0%
Ancestry
Ancestry Count % French 55 12.6% Polish 51 11.6% Italian 20 4.6% Arab 13 3%
Ancestry Count % Irish 5 1.1% English 4 0.9% Norwegian 4 0.9%
Technology access
Metric % of households Computer access 43.8% Internet access 90.6%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 50108
What city is ZIP code 50108 in?
ZIP code 50108 is primarily assigned to Grand River, Iowa.
What county is ZIP code 50108 in?
ZIP code 50108 falls within Decatur County, Iowa.
Does ZIP code 50108 have an older population?
28% of residents in ZIP code 50108 are 65 or older, above the national average of ~17%.
What is the poverty rate in ZIP code 50108?
26% of residents in ZIP code 50108 live below the poverty line, above the national average.
Does ZIP code 50108 have a large retiree population?
50% of households in ZIP code 50108 receive Social Security income, suggesting a significant retiree or disability population.
How educated is the population of ZIP code 50108?
12% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.
What timezone is ZIP code 50108 in?
ZIP code 50108 observes the CST timezone.
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